Can-filling machine.



c. H AY ARS.

CAN FILUNG, MACHINE. APPLICATIQNAFILED DEC. :1. 1915.

xiii? v 4 SHEETS-SHEET I- my 2 I Patented Fb. 5, 19181..

C. H AYARS CAN FILLING'MACHINE. APPLICATION men use. 8. 1915.

Patented Feb: 5,1918.

4 SHEETSSHEET 2 C. H AYARS. CAN mum; MACHINE. APPLICATION FILED DEC-B.1915 Patented Feb. 5, 1918.

4 SHEETS-SHEET 3 c. H AYA RS. CAN FILLING MACHINE. a APPLICATION FILEDmama. 191s.

- Patented Feb, 5,1918.

4 SHEETS-SHEE T 4.

.22 I Ma; W

SALEM, NEW JERSEY, A CORPORATION. OF

urns areas, or SALEM, new annsnmassrenrorj 'ro evens MACHINE so. or

JERSEY.

CAN-FILLING Macnrivn.

To all whom it may concern:

Be it known that l, CHARLES H. Avans,

a citizen ofthe United States, residing at Salem, in the county of Salemand State of New Jersey, have invented certain new and usefulImprovements in (Jan-Filling Machines, of which the following-is aspecifilet and a separate ejecting plunger forces the material from theoutlet-into a-oan.

The invention in the present instance is shown embodied in a machineparticularly designed .for packing tomatoes but it may readily beembodied in machines for pack: ing other vegetables or materials.

The object of the invention is to improve the construction offillingmachines with a view of filling the cans uniformly and to provideimproved plunger-s and actuating means therefor whereby'this uniformityin the filling maybe obtained.

The invention is illustrated in the accompanying drawings wherein,- a

Figure 1, shows a front elevation of a canfilling machine embodying theinvention,-"

some parts, unnecessary to the illustration of the invention howeverbeing omitted.

Fig. 2, illustrates the machine as viewed.

from one side,-the lower part of which is shown in side elevation andthe upper part in vertical section.

Fig. 3, shows the same as viewed from the opposite side of the machine.

Fig. 4, illustrates the machine in top plan.

Fig. 5, shows a vertical longitudinal secthe front side of ing 22.

tion through-the hopper.

Fig. .6, illustrates a cross-sectional detail through the same,-thesection being taken on the line 6-6 of Fig. 5. y

Fig. 7, shows an enlarged sectional detail through the adjusting meanson the lever that actuates 4 the hopper "feed plunger whereby to varythe stroke of the latter.- a

Fig. 8, illustrates a cross-sectional detail of-the same on theline 88of Fig. 1

Fig. 9, shows an enlarged sectional detail through the adjusting meansfor the ejecting plunger,the section being taken on the line 9-9 of Fig.2.

.Fig. 10, illustrates a horizontal crosssec Specification of IlettersPatent.

' Patented Feb. a. rare.

Application filed December 8, 1915. 'Serial No. 65,733.

hopper,-the section being taken on the line 10-10 of Fig. 5, and

Fig. 11, shows a detail top plan view of the cut-0d slide plate. a

Fig. 12, shows the plunger-end in perspective. I

' Referringto the drawings the two vertical side frames of the machineare connected by a horizontal plate, which latter carries ahopper-supporting frame 12.' A. hopper 13, is sustained by the frame 12,and said hopper has a straight front wall portion 14:, whose lower endterminates in vertical nozzle 15.

At the rear side, the hopper has an inclined wall 16, with an opening 17therein and beneath the. opening said hopper also has an inclinedchamber 18, which extends 1 in an inclined direction and whose lowerguide opening 22, on the interior of the discharge nozzle 15.

tional detail through the lowerpart of the a circular It is to beunderstood that the interior I walls of' the hopper incline toward thedepressed channel 19; that the interior rear wallthereof inclinesdownwardly and forwardly towardthe lower end of said channel, and thatthe'interior front wall of the hopper extends substantially verticalfrom the circular guide open- The depending, nozzle'portion l5 of thehopper is provided with a horizontal flange 23, against the under sideof which a horizontal cut-ofl' slide operates, as will presently beexplained. I an 'ncl'ned plunger 24, is situated in plunger is of arectangular cross-sectional shape. Thelower end of this plunger has aflat horizontal surface 25, and a concave recess 26, is provided in saidend and extends down vertically andat a right angle with respect to saidflat surface. At

the depressed hopper channel 19, and said opposite sides of the concaverecess the plunger-end is provided with vvertlcal straight edges 27, asclearly shown in Fig. 12, of the drawing, which vertlcal edges, when theplunger is. in its extreme lower position, as shown in Fig. 4, willregister or aline with the vertical walls 21', in the hopper wall sothat the concave recess 26,

of the plunger will form one side of the circular guide opening 22, whensaid plunger is down.

The upper end of the plunger 24, extends through the opening 17, in thehopper bottom and has position in the plunger chamber 18, and a rod 28,is-connected to the upper end of the plunger; extends upwardly in aninclined direction and has its upper end projecting above the upper endof the chamber and hopper wall.

Reciprocating movement is imparted to the rod 28, and plunger 24, bymeans of a guide bar 29, and an operating rod 30,

which latter has its lower end pivotally connected to an adjustable head31, that is slidably mounted in a frame 32, at the upper end of a rocklever 33.

', lever 33, is pivotally mounted on a hori- 7 guide brackets 45.

zontal bar 34, and has a roller 35, that engages a grooved cam 36, on ahorizontal cam reciprocation of plunger 24, in the-hopper.

Over the circular guide opening 22, of the discharge nozzle I provide anejector plunger 40, the same having position at. the inner side of thevertical front wall of the hopper. This ejector plunger is carried atthe lower end of a vertlcalrod 41, which passes through a bracket 42, onthe inner side of the front hopper wall. The upper end of this red isconnected bya horizontal bar 43, to the upper end of avertically-reciprocating rod 44, which latter passes through The lowerend of rod 44, is pivotally attached to the upper end of an arm 46,which latter has its lower end 'adjustably connected to the forward endof a rock-bar 47. This forward end of rockbar 47, is provided with alongitudinal slot Y48, and a pin 49, projects from the arm 46,

and projects through this slot and is rigidly locked thereto by means ofa nut 50, as shown in sectional detail in Fig. 9, of the drawing. Therear end of rock-bar 47, is pivotally carried on a cross-bar 51, and aroller 52, is carried by the bar and by traveling in a groove of a cam53, causes the outer slotted end of said bar to swing up and down and tothereby vertically reciprocate the ejector plunger 40.

By referring to Figs. 2 and 4 of the drawings, it will be noted thatwhen the plunger 24 is down, the concave recess 26, in its end will fitclose about the ejector plunger 40, so that the bottom of said plunger40, the concaved recess 26, in the end of plunger 24, and the wallsthatform the guide opening 22, all go to form a measuring space .intowhich the material from the hopper is forced by the plunger 24, andwhich space is closed at the bottom, during the downward stroke ofplunger 24, by means of a cut-off slide plate 54, which will presentlybe explained.

It is therefore to be understood that the circular opening 22, is closedat the bottom during the measuring operation, by the slide plate 54;that ejector plunger will be up and that the space between the bottom ofthe ejector plunger when the latter is up This rock and the slide platewill form a measuring space that is open at that side which confrontsthe plunger 24. Therefore as plunger 24, descends it forces the materialinto said space and its concaved recessed end will form the other sideof the measuring space to confine the material therein, until the slide54, is withdrawn and the plunger 40, is lowered to eject the measuredmaterial.

The slide plate 54, is held horizontally against the under side of theflange 23, and

is provided with an opening 55, which is substantially of the samediameter as that of the guide'opening 22. At one end this plate isprovided with a link bar 56, which is pivotally connected 'to the upperend of a rock lever 57,the lower end of which lever is pivotallyattached to a bracket 58, that projects from the side frame of themachine. Between its upper and lower ends the rock lever 57, is providedwith two spaced-apart rollers 59, which latter straddle orproject 011opposite sides of a cam 60, that is carried on the horizontal shaft 36.As cam 60, revolves it will rock lever 57, and throw its upper endtoward the nozzle 15,

.thus pushing cut-olf slide 54, horizontally until the opening 55, inthe latter registers with the opening 22, in the nozzle. The ejectorplunger 40,'then moves down and forces the measured material downthrough the opening 55, in the slide-plate and into a can 61, that hasbeen placed on a table 62, which sustains it during the fillingoperation. 1

The table 62, is carried at the outer end of a rock bar 63, whose innerend is pivotally mounted on a horizontal cross-bar 64, and the rock baris provided with a roller 65, that travels on the circumferential faceteams??? means for automatically feeding the cans onto the table 62, andwhile the mechanism employed is not essential to the operation of thedevices hereinbefore described, briefly stated it consists of areciprocating pusher head 67, shown in Fig. 2, of the drawing,

which passes-through the lQWQE and. of a can-chute 68, and pushes" onecan forward at a time. In the present instance the cans are shown asrolled on their cylindric-sides and delivered in that position in frontof the head and at the front side of the chute I provide a series ofcurved arms 69, which engage the can .as it is moved forward and effecta partial rotation thereof so as to turn them on their ends as they aredelivered onto the table.

The head '67, is carried by a guide bar 70, and the latter isreciprocated by means of a rock bar 71, whose lower end is pivotallymounted on cross-bar 34, and which has a roller 72, that enters a groovein the'side of cam 66, which groove effects a rocking of the bar to feedthe cans forward one at a time.

A main shaft 73, extends horizontally across the machine and has a'driving pulley 74, at one end. The opposite end of this main shaftcarries a pinion 75, which meshes with and drives a gear 76, on the camshaft 39, and by this means motion is provided for the several movingparts.

Having described my invention What I claim is, v

.1. In a can-filling machine, the combination with a hopper having anoutlet, of a plunger exposed on the interior of the hopper to movematerial toward said outlet; a second plunger also in the hopper andmovable crosswise of the end of the first-named plunger, and the ends ofsaid two plunger-s forming walls of a measuring space inside of thehopper to determine the bulk of material to be discharged, and means forholding the second plunger elevated while the first-named plunger makesa feed stroke.

2. In a can-filling machine, the combina-' tion with a hopper having anoutlet, of a plunger exposed to the interior of the hopper to movematerial toward said outlet: a

second plunger also exposed to the interior I of the hopper and movablein a direction crosswise of the end of the first-named plunger said twoplunger-ends forming walls of a measuring space in the hopper itself;means independent of both plungers for closing the escape from themeasuring space while the first-named plunger is making its feed strokeand means for opening the escape from the measuring space when thesecond-named plunger makes a feed stroke.

3. In a can-filling machine, the combination with a hopper having anoutlet, of av plunger in the hopper and having a concave forward end; asecond plunger also in the hopper in alinement with the hopper outletand having a convex surface to pass through the concave end of thefirst-named plunger,-the ends of said two plungers forming walls of ameasuring space over said hopperoutlet; valve means in the hopper outletbeneath both of said plungers for opening and closing the outlet; meansfor keeping the valve closed when one plunger makes a stroke and meets.for opening the valve when the other plunger is making its stroke.

A. In a can-filling machine, the combination with a hopper having anoutlet, of 'a plunger inside of the hopper and having a concave end; asecond plunger also inside of the hopper in alinement with the hopperoutlet and having a convex surface to pass through the concave end ofthe first-named plunger,the ends of said two plungers forming walls of ameasuring space over said hopper-outlet; a movable can-supporting tablebeneath the'hopper-opening; valve means below both plungers and abovethe table; means for holding the valve closed CHARLES H. AYARS.

Witnesses:

O. V. ACTON, MARY l). BANKS.

